Préoccupez-vous constamment, d'une

Préoccupez-vous constamment, d'une façon énergique,vigoureuse, vigilante et attentive, de la surveillancedu côté de la mer, aussi bien de nuit que de jour.C'est surtout aux artilleurs qu'incombe ce grave souci ;aucun d'eux ne devra se soustraire à ce devoir ni nedevra coucher dans sa maison.

Results (English) 1:

Concern yourself constantly, energetic way,
vigorous, attentive and vigilant, monitoring
the side of the sea, both night and day.
This is especially the gunners bears this serious concern;
none of them will escape this duty nor
will sleep in his house.

Results (English) 2:

Constantly, in an energetic way,
vigorous, vigilant and attentive, surveillance
on the sea side, both at night and during the day.
It is above all the gunners who are responsible for this serious concern;
none of them should evade this duty or
will have to sleep in his house.

Results (English) 3:

You need to pay attention all the time
Close, vigilant and careful surveillance
By the sea, night and day.
This serious concern is mainly caused by artillery.
None of them should shirk this responsibility
You have to sleep in his house